Variable speed temperature controlled stretching device for nylon filament
By setting up stretching and cleaning components, efficient stretching and convenient disassembly of nylon filaments are achieved. The heating roller device solves the problems of low stretching efficiency and inconvenient disassembly of heating rollers in existing devices, thereby improving the mechanical properties of the fiber.
Patent Information
- Application Number
- CN202521605315.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-07-30
AI Technical Summary
Existing variable speed temperature control stretching devices for nylon fibers have low stretching efficiency and cannot effectively solve the problems of spinning burrs and convenient disassembly of heating rollers.
By setting up a stretching assembly, when the driving wheel rotates, it drives the driven wheel to rotate via a belt, making the driven wheel's speed greater than that of the driving wheel. This synchronously drives the high-speed roller to rotate, and the controller controls the speed of the stepper motor to adjust the speeds of the high-speed and low-speed rollers to achieve synchronous stretching. At the same time, the cleaning assembly uses a rubber ring to drive the mounting roller to rotate, which in turn drives the cleaning brush to clean impurities from the filament surface. The heating element and fan heat the filament.
It achieves efficient filament stretching, solves the problem of low stretching efficiency, and facilitates the disassembly and cleaning of the heating roller, thereby improving the mechanical properties of the fiber.
Smart Images

Figure CN224411984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nylon filament stretching technology, and in particular to a nylon filament variable speed temperature control stretching device. Background Technology
[0002] The nylon filament variable speed temperature-controlled stretching device is a specialized piece of equipment that achieves fiber stretching through variable speed and temperature control technology. Its core lies in achieving the stretching effect through the speed difference between low-speed and high-speed rollers, and uniformly heating the fiber through a temperature controller to optimize molecular orientation and crystallinity, thereby improving the fiber's mechanical properties. The device typically employs multiple sets of rollers with different speeds (such as low-speed and high-speed rollers), using this speed difference to achieve dynamic stretching of the nylon filament. The first temperature controller heats the filament to 80-100℃, reducing internal stress within the molecular chains and preparing for subsequent stretching. Hot rollers or biphenyl steam heating (such as the spinning box design temperature of the SKV752 model reaching 320℃) is used to achieve plastic deformation of the filament at a high temperature of 115-135℃.
[0003] Existing devices suffer from low stretching efficiency, inability to resolve spinning burrs, and difficulty in easily disassembling the heating rollers, resulting in inconvenience in use and poor protection capabilities.
[0004] An existing patent (publication number: CN220394008U) discloses a nylon spinning stretching structure, which uses two first threaded rods to cooperate with a first threaded block to ensure the stretching effect of nylon spinning and facilitate the disassembly of the heating roller.
[0005] To address the aforementioned issues, while existing patents have proposed solutions that utilize two first threaded rods in conjunction with a first threaded block to ensure the stretching effect of nylon spinning and facilitate the disassembly of the heating roller, the stretching effect of the spinning is poor when using the adjustment mechanism of the screw and threaded block, and it cannot effectively stretch the yarn. Summary of the Invention
[0006] The purpose of this invention is to provide a variable speed temperature control stretching device for nylon filaments. Through the set stretching components, when the driving wheel rotates, it drives the driven wheel to rotate via a belt, ensuring that the driven wheel's speed is greater than that of the driving wheel. This synchronously drives the high-speed roller to rotate, and with the cooperation of the low-speed roller, the filament can be stretched. Furthermore, by controlling the speed of the stepper motor through a controller, the speeds of the high-speed and low-speed rollers can be adjusted to achieve synchronization, ensuring the stretching effect of the long filament and solving the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a nylon filament variable speed temperature control stretching device, comprising a device base plate, a guide roller rotatably connected to one side of the device base plate via a bearing, a stretching component for stretching the filament provided on the side wall of the device base plate, and a cleaning component for cleaning the filament provided at one end of the device base plate.
[0008] The stretching assembly includes a low-speed roller mounted on the side wall of the device substrate. One end of the low-speed roller is fixed to a drive wheel. A belt is connected to the outer wall of the drive wheel. A driven wheel is connected to one side of the belt. A high-speed roller is connected inside the driven wheel.
[0009] Preferably, a drive wheel is fixed to the side wall of the drive wheel, and a stepper motor fixed on the device base plate is connected to one side of the drive wheel.
[0010] Preferably, the cleaning assembly includes a mounting roller that rotates at one end of the device substrate via a bearing, and a drive gear is fixed to the end of the mounting roller.
[0011] Preferably, a driven gear meshes with the side wall of the driving gear, and a cleaning brush is connected to one side of the driven gear.
[0012] Preferably, the left side of the cleaning brush is provided with a limiting roller connected to the limiting roller via a bearing, and one side of the limiting roller is provided with a heating element fixed on the device substrate.
[0013] Preferably, a fan is fixed to the upper surface of the heating element by screws, and a heating cavity is formed inside the heating element.
[0014] Preferably, a plurality of heating tubes are installed at the upper end of the heating chamber, and a rubber ring is fitted on the outer surface of the mounting roller.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. Through the set stretching component, when the driving wheel rotates, it drives the driven wheel to rotate via the belt, so that the speed of the driven wheel is greater than that of the driving wheel, thereby synchronously driving the high-speed roller to rotate. With the cooperation of the low-speed roller, the filament can be stretched. Furthermore, by controlling the speed of the stepper motor through the controller, the speed of the high-speed roller and the low-speed roller can be adjusted to achieve synchronization and ensure the stretching effect of the long thread.
[0017] 2. Through the cleaning components and the rubber ring on the outer surface of the mounting roller, when the filament is conveyed, the mounting roller can be driven to rotate under the action of friction, so that the mounting roller drives the drive gear to rotate. At this time, the drive gear meshes with the driven gear to drive the cleaning brush to rotate, so that the cleaning brush cleans the impurities adhering to the outer surface of the filament. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is an overall structural view of the present invention;
[0020] Figure 2 This is a side view of the substrate of the device of this utility model.
[0021] Figure 3 This is a half-sectional structural diagram of the heating element of this utility model;
[0022] Figure 4 This is a three-dimensional structural diagram of the mounting roller of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Device base plate; 2. Guide roller; 3. Low-speed roller; 31. Drive wheel; 32. Belt; 33. Driven wheel; 34. High-speed roller; 35. Drive wheel; 36. Stepper motor; 4. Mounting roller; 41. Drive gear; 42. Driven gear; 43. Cleaning brush; 44. Limiting roller; 45. Heating element; 46. Fan; 47. Heating chamber; 48. Heating tube; 49. Rubber ring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides a technical solution:
[0027] Please see Figures 1 to 4 A nylon filament variable speed temperature control stretching device includes a device base plate 1, a guide roller 2 rotatably connected to one side of the device base plate 1 via a bearing, a stretching component for stretching the filament on the side wall of the device base plate 1, and a cleaning component for cleaning the filament at one end of the device base plate 1.
[0028] The stretching assembly includes a low-speed roller 3, which is mounted on the side wall of the device base plate 1. One end of the low-speed roller 3 is fixed with a drive wheel 31. A belt 32 is connected to the outer wall of the drive wheel 31. A driven wheel 33 is connected to one side of the belt 32. A high-speed roller 34 is connected inside the driven wheel 33. A drive wheel 35 is fixed to the side wall of the drive wheel 31. A stepper motor 36 fixed on the device base plate 1 is connected to one side of the drive wheel 35.
[0029] By adopting the above technical solution, the device substrate 1 is placed in a suitable position. In use, the filament to be processed passes through the lower end of the guide roller 2, then through the upper end of the mounting roller 4, and through the two limiting rollers 44 to pass through the inside of the heating element 45. Then, it passes through the upper end of the low-speed roller 3 and the lower end of the high-speed roller 34 respectively and connects to the external winding equipment. The winding equipment winds up the filament. At the same time, the stepper motor 36 drives the drive wheel 35 to rotate, which in turn drives the drive wheel 31 to rotate. The drive wheel 31 drives the low-speed roller 3 to rotate. When the drive wheel 31 rotates, it drives the driven wheel 33 to rotate through the belt 32. Since the diameter of the drive wheel 31 is larger than that of the driven wheel 33, the speed of the driven wheel 33 is greater than that of the drive wheel 31. This synchronously drives the high-speed roller 34 to rotate. With the cooperation of the low-speed roller 3, the filament can be stretched. The speed of the stepper motor 36 can be adjusted by the controller, and the speed of the high-speed roller 34 and the low-speed roller 3 can be synchronized to ensure the stretching effect of the long thread.
[0030] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the cleaning assembly includes a mounting roller 4, which rotates at one end of the device base plate 1 via a bearing. A drive gear 41 is fixed to the end of the mounting roller 4, and a driven gear 42 meshes with the side wall of the drive gear 41. A cleaning brush 43 is connected to one side of the driven gear 42. A limiting roller 44 is provided on the left side of the cleaning brush 43 via a bearing and connected to a limiting roller 44. A heating element 45 is fixed to the device base plate 1 on one side of the limiting roller 44. A fan 46 is fixed to the upper surface of the heating element 45 by screws. A heating chamber 47 is opened inside the heating element 45. Several heating tubes 48 are installed at the upper end of the heating chamber 47. A rubber ring 49 is sleeved on the outer surface of the mounting roller 4.
[0031] By adopting the above technical solution, the rubber ring 49 set on the outer surface of the mounting roller 4 can drive the mounting roller 4 to rotate under the action of friction when the filament is conveyed. This causes the mounting roller 4 to drive the drive gear 41 to rotate. At this time, the drive gear 41 meshes with the driven gear 42 to drive the cleaning brush 43 to rotate, so that the cleaning brush 43 cleans the impurities adhering to the outer surface of the filament. The setting limit roller 44 can limit the filament. When the filament passes through the heating chamber 47 inside the heating element 45, the setting heating tube 48 heats it. The fan 46 blows hot air onto the filament, thereby heating the filament and ensuring the subsequent stretching effect.
[0032] Working principle: The stepper motor 36 drives the drive wheel 35 to rotate, which in turn drives the drive wheel 31 to rotate. The drive wheel 31 drives the low-speed roller 3 to rotate. When the drive wheel 31 rotates, it drives the driven wheel 33 to rotate via the belt 32. Since the diameter of the drive wheel 31 is larger than that of the driven wheel 33, the speed of the driven wheel 33 is greater than that of the drive wheel 31. This synchronously drives the high-speed roller 34 to rotate. With the cooperation of the low-speed roller 3, the filament can be stretched. The speed of the stepper motor 36 can be controlled by the controller, which can adjust the speed of the high-speed roller 34 and the low-speed roller 3 and achieve synchronization. The function is to ensure the stretching effect of the long filament. The rubber ring 49 set on the outer surface of the mounting roller 4 can drive the mounting roller 4 to rotate under the action of friction when the filament is conveyed. This causes the mounting roller 4 to drive the drive gear 41 to rotate. At this time, the drive gear 41 meshes with the driven gear 42 to drive the cleaning brush 43 to rotate, so that the cleaning brush 43 cleans the impurities adhering to the outer surface of the filament. The setting limit roller 44 can limit the filament. When the filament passes through the heating chamber 47 inside the heating element 45, the setting heating tube 48 heats it. The fan 46 blows hot air to the filament, thereby heating the filament.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A variable speed temperature control stretching device for nylon filaments, comprising a device base plate (1), characterized in that: A guide roller (2) is rotatably connected to one side of the device substrate (1) via a bearing. A stretching assembly for stretching filaments is provided on the side wall of the device substrate (1). A cleaning assembly for cleaning filaments is provided at one end of the device substrate (1). The stretching assembly includes a low-speed roller (3), which is mounted on the side wall of the device base plate (1). One end of the low-speed roller (3) is fixed with a drive wheel (31). A belt (32) is connected to the outer wall of the drive wheel (31). A driven wheel (33) is connected to one side of the belt (32). A high-speed roller (34) is connected inside the driven wheel (33).
2. The nylon filament variable speed temperature control stretching device according to claim 1, characterized in that: The drive wheel (35) is fixed to the side wall of the drive wheel (31), and a stepper motor (36) fixed on the device base plate (1) is connected to one side of the drive wheel (35).
3. The nylon filament variable speed temperature control stretching device according to claim 2, characterized in that: The cleaning assembly includes a mounting roller (4), which rotates at one end of the device base plate (1) via a bearing, and a drive gear (41) is fixed at the end of the mounting roller (4).
4. The nylon filament variable speed temperature control stretching device according to claim 3, characterized in that: The side wall of the driving gear (41) is engaged with a driven gear (42), and a cleaning brush (43) is connected to one side of the driven gear (42).
5. The nylon filament variable speed temperature control stretching device according to claim 4, characterized in that: The left side of the cleaning brush (43) is provided with a limiting roller (44) connected to the limiting roller (44) by a bearing, and a heating element (45) fixed on the device base plate (1) is provided on one side of the limiting roller (44).
6. The nylon filament variable speed temperature control stretching device according to claim 5, characterized in that: The upper surface of the heating element (45) is fixed with a fan (46) by screws, and a heating cavity (47) is opened inside the heating element (45).
7. The nylon filament variable speed temperature control stretching device according to claim 6, characterized in that: Several heating tubes (48) are installed at the upper end of the heating chamber (47), and a rubber ring (49) is sleeved on the outer surface of the mounting roller (4).
Citation Information
Patent Citations
Polyamide spinning stretching structure
CN220394008U